/Engine/Plugins/Runtime/MassEntity/Source/MassEntity/Public/MassEntityManager.h
[FMassArchetypeHandle](API\Plugins\MassEntity\FMassArchetypeHandle) InternalCreateSimilarArchetype ( const FMassArchetypeData & SourceArchetypeRef, [FMassArchetypeCompositionDescriptor](API\Plugins\MassEntity\FMassArchetypeCompositionDescrip-) && NewComposition )